Mir Ferdous Chowdhury, Shahjalal Khandaker, Forkan Sarker, Aminul Islam et al.
The release of colored wastewater from industries into surface water bodies creates undesirable consequences to the marine ecosystem and human beings owing to its pernicious effect. Indigo dyes being aromatic compounds with complex structure are one of the most important as well as the largest class...
Shams Forruque Ahmed, P. Senthil Kumar, Mahtabin Rodela Rozbu, Anika Tasnim Chowdhury et al.
Arsenic is a highly toxic metalloid that is extensively distributed in soils and water bodies, resulting in a variety of toxicity mechanisms and harmful effects on humans and environmental health. This paper comprehensively reviews the technological development in arsenic (As) removal from wastewate...
Yunho Lee, Ik‐Hwan Um, Jeyong Yoon
We investigated the stoichiometry, kinetics, and mechanism of arsenite [As(III)] oxidation by ferrate [Fe(VI)] and performed arsenic removal tests using Fe(VI) as both an oxidant and a coagulant. As(III) was oxidized to As(V) (arsenate) by Fe(VI), with a stoichiometry of 3:2 [As(III):Fe(VI)]. Kineti...
Alberto Figoli, Alfredo Cassano, Alessandra Criscuoli, Md. Salatul Islam Mozumder et al.
Arsenic contamination of surface and groundwater is a worldwide problem in a large number of Countries (Bangladesh, Argentina, Italy, USA, New Zealand, etc.). In many contaminated areas a continuous investigation of the available arsenic removal technologies is essential to develop economical and ef...
Md. Aminul Islam, Michael J. Angove, David W. Morton, Biplob Kumar Pramanik et al.
The concentration of chromium (VI) in the soil is an important environmental concern due to its mobility and acute toxicity. Due to its toxicity, removal of this species is very important. The mobility of Cr(VI) is highly governed by its adsorption onto the mineral surfaces. Manganese oxides are nat...
Anke Neumann, Rälf Kaegi, Andreas Voegelin, Abul Hussam et al.
The main arsenic mitigation measures in Bangladesh, well-switching and deep tube wells, have reduced As exposure, but water treatment is important where As-free water is not available. Zero-valent iron (ZVI) based SONO household filters, developed in Bangladesh, remove As by corrosion of locally ava...
Anushka Upamali Rajapaksha, Rangabhashiyam Selvasembian, Ahamed Ashiq, Viraj Gunarathne et al.
The contamination of natural resources by hexavalent chromium (Cr(VI)) originating from natural and anthropogenic activities is a serious environmental concern. Although many articles on chromium remediation have been published, a comprehensive understanding of the mechanisms involved in remediation...
Tong Zhang, Yuanyuan Liu, Shan Zhong, Lishan Zhang
Petroleum hydrocarbons are a class of anthropogenic compounds including alkanes, aromatic hydrocarbons, resins, asphaltenes and other organic matters, and soil pollution caused by petroleum hydrocarbons has drawn increasing interest in recent years. Multiple advanced oxidation processes (AOPs) are e...
Case M. van Genuchten, Susan E.A. Addy, Jasquelin Peña, Ashok Gadgil
Electrocoagulation (EC) using iron electrodes is a promising arsenic removal strategy for Bangladesh groundwater drinking supplies. EC is based on the rapid in situ dissolution of a sacrificial Fe(0) anode to generate iron precipitates with a high arsenic sorption affinity. We used X-ray absorption ...
Olivier X. Leupin, Stephan J. Hug, A. B. M. Badruzzaman
Arsenic removal is often challenging due to high As(III), phosphate, and silicate concentrations and low natural iron concentrations. Application of zerovalent iron is promising, as metallic iron is widely available. However, removal mechanisms remained unclear and currently used removal units with ...
Mohammad Ilias, Iftekhar Rafiqullah, Bejoy Chandra Debnath, Khanjada Shahnewaj Bin Mannan et al.
Two chromium-resistant bacteria (IFR-2 and IFR-3) capable of reducing/transforming Cr(VI) to Cr(III) were isolated from tannery effluents. Isolates IFR-2 and IFR-3 were identified as Staphylococcus aureus and Pediococcus pentosaceus respectively by 16S rRNA gene sequence analyses. Both isolates can ...
Md. Tajuddin Sikder, Yoshihiro Mihara, Md. Shariful Islam, Takeshi Saito et al.
A. K. M. Atique Ullah, A.K.M. Fazle Kibria, Mahmuda Akter, M. N. I. Khan et al.
Ningfan Song, Jian Xu, Yunpeng Cao, Fan Xia et al.
The processes of (n)ZVI/AC（（nano）zero valent iron/activated carbon）micro-electrolysis were applied for nitrate removal from groundwater, aiming to reduce nitrate to N2, an environmentally friendly end product. (n)ZVI was utilized and combined with selected commercial AC to form the micro-electrolysi...
Siyuan Wang, Shaoying Ai, Christopher Nzediegwu, Jin‐Hyeob Kwak et al.
The effectiveness of the modification of wheat straw biochar using FeCl3 and HCl, alone or combined, on ammonium adsorption was evaluated using kinetic and isotherm models. The adsorption mechanisms were studied by comparative analysis of the surface properties of the biochars before and after ammon...